Alaska plaice
A species of flatfish found in the North Pacific. Scientific name: Pleuronectes quadrituberculatus.
I found Alaska plaice at the market in Hokkaido.
Katakana spelling is standard for this fish name; usually written in kana.
Kanji spelling is rare and mainly used in taxonomic or specialized contexts.
The name ツノガレイ literally means 'horn flounder', likely from the bony ridges behind the eyes. The exact derivation is uncertain.